| /* | |
| * zcrypt 2.1.0 | |
| * | |
| * Copyright IBM Corp. 2001, 2006 | |
| * Author(s): Robert Burroughs | |
| * Eric Rossman (edrossma@us.ibm.com) | |
| * | |
| * Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com) | |
| * Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com> | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation; either version 2, or (at your option) | |
| * any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| * GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program; if not, write to the Free Software | |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
| */ | |
| #ifndef _ZCRYPT_ERROR_H_ | |
| #define _ZCRYPT_ERROR_H_ | |
| #include <linux/atomic.h> | |
| #include "zcrypt_debug.h" | |
| #include "zcrypt_api.h" | |
| /** | |
| * Reply Messages | |
| * | |
| * Error reply messages are of two types: | |
| * 82: Error (see below) | |
| * 88: Error (see below) | |
| * Both type 82 and type 88 have the same structure in the header. | |
| * | |
| * Request reply messages are of three known types: | |
| * 80: Reply from a Type 50 Request (see CEX2A-RELATED STRUCTS) | |
| * 84: Reply from a Type 4 Request (see PCICA-RELATED STRUCTS) | |
| * 86: Reply from a Type 6 Request (see PCICC/PCIXCC/CEX2C-RELATED STRUCTS) | |
| * | |
| */ | |
| struct error_hdr { | |
| unsigned char reserved1; /* 0x00 */ | |
| unsigned char type; /* 0x82 or 0x88 */ | |
| unsigned char reserved2[2]; /* 0x0000 */ | |
| unsigned char reply_code; /* reply code */ | |
| unsigned char reserved3[3]; /* 0x000000 */ | |
| }; | |
| #define TYPE82_RSP_CODE 0x82 | |
| #define TYPE88_RSP_CODE 0x88 | |
| #define REP82_ERROR_MACHINE_FAILURE 0x10 | |
| #define REP82_ERROR_PREEMPT_FAILURE 0x12 | |
| #define REP82_ERROR_CHECKPT_FAILURE 0x14 | |
| #define REP82_ERROR_MESSAGE_TYPE 0x20 | |
| #define REP82_ERROR_INVALID_COMM_CD 0x21 /* Type 84 */ | |
| #define REP82_ERROR_INVALID_MSG_LEN 0x23 | |
| #define REP82_ERROR_RESERVD_FIELD 0x24 /* was 0x50 */ | |
| #define REP82_ERROR_FORMAT_FIELD 0x29 | |
| #define REP82_ERROR_INVALID_COMMAND 0x30 | |
| #define REP82_ERROR_MALFORMED_MSG 0x40 | |
| #define REP82_ERROR_RESERVED_FIELDO 0x50 /* old value */ | |
| #define REP82_ERROR_WORD_ALIGNMENT 0x60 | |
| #define REP82_ERROR_MESSAGE_LENGTH 0x80 | |
| #define REP82_ERROR_OPERAND_INVALID 0x82 | |
| #define REP82_ERROR_OPERAND_SIZE 0x84 | |
| #define REP82_ERROR_EVEN_MOD_IN_OPND 0x85 | |
| #define REP82_ERROR_RESERVED_FIELD 0x88 | |
| #define REP82_ERROR_TRANSPORT_FAIL 0x90 | |
| #define REP82_ERROR_PACKET_TRUNCATED 0xA0 | |
| #define REP82_ERROR_ZERO_BUFFER_LEN 0xB0 | |
| #define REP88_ERROR_MODULE_FAILURE 0x10 | |
| #define REP88_ERROR_MESSAGE_TYPE 0x20 | |
| #define REP88_ERROR_MESSAGE_MALFORMD 0x22 | |
| #define REP88_ERROR_MESSAGE_LENGTH 0x23 | |
| #define REP88_ERROR_RESERVED_FIELD 0x24 | |
| #define REP88_ERROR_KEY_TYPE 0x34 | |
| #define REP88_ERROR_INVALID_KEY 0x82 /* CEX2A */ | |
| #define REP88_ERROR_OPERAND 0x84 /* CEX2A */ | |
| #define REP88_ERROR_OPERAND_EVEN_MOD 0x85 /* CEX2A */ | |
| static inline int convert_error(struct zcrypt_device *zdev, | |
| struct ap_message *reply) | |
| { | |
| struct error_hdr *ehdr = reply->message; | |
| switch (ehdr->reply_code) { | |
| case REP82_ERROR_OPERAND_INVALID: | |
| case REP82_ERROR_OPERAND_SIZE: | |
| case REP82_ERROR_EVEN_MOD_IN_OPND: | |
| case REP88_ERROR_MESSAGE_MALFORMD: | |
| // REP88_ERROR_INVALID_KEY // '82' CEX2A | |
| // REP88_ERROR_OPERAND // '84' CEX2A | |
| // REP88_ERROR_OPERAND_EVEN_MOD // '85' CEX2A | |
| /* Invalid input data. */ | |
| return -EINVAL; | |
| case REP82_ERROR_MESSAGE_TYPE: | |
| // REP88_ERROR_MESSAGE_TYPE // '20' CEX2A | |
| /* | |
| * To sent a message of the wrong type is a bug in the | |
| * device driver. Send error msg, disable the device | |
| * and then repeat the request. | |
| */ | |
| atomic_set(&zcrypt_rescan_req, 1); | |
| zdev->online = 0; | |
| pr_err("Cryptographic device %x failed and was set offline\n", | |
| AP_QID_DEVICE(zdev->ap_dev->qid)); | |
| ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d", | |
| AP_QID_DEVICE(zdev->ap_dev->qid), zdev->online, | |
| ehdr->reply_code); | |
| return -EAGAIN; | |
| case REP82_ERROR_TRANSPORT_FAIL: | |
| case REP82_ERROR_MACHINE_FAILURE: | |
| // REP88_ERROR_MODULE_FAILURE // '10' CEX2A | |
| /* If a card fails disable it and repeat the request. */ | |
| atomic_set(&zcrypt_rescan_req, 1); | |
| zdev->online = 0; | |
| pr_err("Cryptographic device %x failed and was set offline\n", | |
| AP_QID_DEVICE(zdev->ap_dev->qid)); | |
| ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d", | |
| AP_QID_DEVICE(zdev->ap_dev->qid), zdev->online, | |
| ehdr->reply_code); | |
| return -EAGAIN; | |
| default: | |
| zdev->online = 0; | |
| pr_err("Cryptographic device %x failed and was set offline\n", | |
| AP_QID_DEVICE(zdev->ap_dev->qid)); | |
| ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d", | |
| AP_QID_DEVICE(zdev->ap_dev->qid), zdev->online, | |
| ehdr->reply_code); | |
| return -EAGAIN; /* repeat the request on a different device. */ | |
| } | |
| } | |
| #endif /* _ZCRYPT_ERROR_H_ */ |